Volume 31 (2019)

Near infrared spectral lines of neutral oxygen as indicators of activity of the Be stars
Lubomir Iliev

Solar Wind Parameters in Periods of Solar Large-Scale Magnetic Field Reversals
Simeon Asenovski

Star formation under explosion mechanism in a magnetized medium
Debasish Mondal, Tanuka Chattopadhyay

First observations with the 25 cm telescope of the Shumen Astronomical Observatory
Diana Kjurkchieva, Sunay Ibryamov, Borislav Borisov, Dragomir Marchev, Velimir Popov, Dinko Dimitrov

Evolution of the magnetic field reversals in galaxies
Evgeny Mikhailov, Tatiana Khasaeva

On the solar origin of in situ observed energetic protons
Rositsa Miteva

New light curve solution of V568~Peg and first determination of its fundamental parameters
Diana Kjurkchieva and Sunay Ibryamov

Ana Borisova, Uwe Wolter, Renada Konstantinova-Antova, K. P. Schroder
Doppler Imaging of the Hertzsprung gap star OU Andromedae

Prabir Gharami, Koushik Ghosh, Farook Rahaman
Theoretical Model of Magnetic Braking in Contact Binary Stars

R. Zamanov, S. Boeva, B. Spassov, G. Latev, U. Wolter, K. A. Stoyanov
Colours of the flickering source of Mira